Sound Design in the Passenger Compartment with Active Noise Control in the Air Intake System

In the future, the requirements of acoustic behavior in air intake systems will continue to increase. Active systems will be necessary to reach the higher legislative standards and customer expectations regarding noise levels.

The optimization of the Active Noise Control System regarding the sound design in the interior is based on the transfer function between the engine and the passenger compartment as well as the design of the air intake system.

This paper shows the development process, with a focus on the investigation of transfer functions in passenger cars and the computational calculation for the system configuration.